Re: [boost] [linear algebra] - question to David Abrahams

From: Bruno Martínez (br1_at_[hidden])
Date: 2006-07-14 11:26:56

On Fri, 14 Jul 2006 12:16:56 -0300, Andy Little  
<andy_at_[hidden]> wrote:

> Is there any chance of writing some sort of quaternions for dummies
> documentation?
> Basically I am the dummy when it comes to maths , unless I have some job  
> to
> perform like getting point x and rotating it about axis a through angle  
> b.
> Unfortunately the higher level stuff is putting the quaternion library  
> out of my
> reach. I think my only use for quaternions is for rotation. My basic use  
> case
> (maybe like Janek) would be
>
> 1) some way to construct the quaternion from (say) an axis angle  
> representation
> of the rotation
> 2) some way to apply it to a 3D point.

Jaap Suter (http://jaapsuter.com/) has an introduction to geometric  
algebra in his home page.  GA subsumes quaternions.  He was also working  
in a C++ library that handled GA objects, including their units.

Bruno